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Finding the Fourth Proportional to 173,249.40, 259,852.20 and 54,921.90

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Solution

The fourth proportional to 173,249.40, 259,852.20 and 54,921.90 is: 82,375.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,249.40 : 259,852.20 = 54,921.90 : x
  2. Step 2: Convert to fraction form
    173,249.40/259,852.20 = 54,921.90/x
  3. Step 3: Cross multiply
    173,249.40x = 259,852.20 × 54,921.90
  4. Step 4: Simplify right side
    173,249.40x = 14,271,576,543.18
  5. Step 5: Solve for x
    x = 14,271,576,543.18/173,249.40
  6. Step 6: Final answer
    x = 82,375.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.